The thick parts of the glass a refined
Having actually quoted this, the shade is still an important descriptive aspect for the recordation and category of containers. Container colors also call for coverage here simply because they are of interesting interest to individuals. As implied in the quote above, there are some time-related trends in the shade that can be of utility for dating. For example, if one has an anemic ("clear") container which was decolorized with selenium and/or arsenic which provides the thick parts of the glass a refined "straw" color, it very likely days no earlier than World war (1914-1918) and also seldom in containers after the 1940s or very early 1950s (Kendrick 1963; Lockhart pers. comm. 2003; empirical observations). The certain "diagnostic utility" of an offered shade is kept in mind in the descriptions listed below.
There are likewise some colors which were extremely hardly ever used for one sort of container (i.e., cobalt blue for cylinder liquor bottles is really uncommon though do exist) yet fairly typical in others (e.g., cobalt blue for toxin containers or Civil War/Antebellum age soda water containers). Thus, some details could often be gleaned from understanding exactly what shade is or is not most likely to take place in a provided classification or course of bottles. This may be especially valuable in the recognition of flip top glass bottles pieces. There constantly has been as well as will certainly continue to be the complication as to color classification even though many attempts have been made to aim to standardize it. The collection agency world is swarming with unusual naming, like "strawberry puce with apricot overtones" being one example of an extensive shade name which is intended in order to help make clear the precise shade of bottle yet could frequently end up causing more complication than clarity.